Oil mixer and burner.



No. 756,116. 'PATENTED': MAR. 29,1904. V w. s. KENGLA. OIL MIXER AND BURNER.

APPLICATION FILED D30. 29, 1902.

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Fatented March 29, 1904.

PATENT OFFICE.

WILLIAM S. KENGLA, OF TUCSON, ARIZONA TERRITORY, ASSIGNOR 7 OF ONE-HALF TO WILLIAM H. BARNES, OF TUCSON, ARIZONA TERRITORY.

on. MIXER AND BURNER.

SPECIFICATION forming part of Letters Patent No. 756,116, dated March 29, 1904. Application filed December 29, 1902- Serial No. 137,029. (No model.)

T0 on whom it may concern:

Be it known that I, WILLIAM S. KENGLA, a resident of Tucson, in the county of Pima and Territory of Arizona, have invented certain new and useful Improvements in Oil Mixers and Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to animproved oil mixer and burner, and more particularly to an apparatus by means of which oil and air are commingledand generated into a gas to be burned at the nozzle or discharge end of the apparatus, the object of the invention being to provide improvements of this character which are so constructed as'to carry out the above functions most efieotually and result in a great improvement over anything of this character heretofore known.

My improvements are intended to be used in heating boilers, particularly locomotiveboilers, and are especially adapted for that purpose, but might of course be employed for other purposes, and'I do not wish ,to be confined to any particular use.

With these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in vertical longitudinal section, illustrating my improvements. Fig. 2 is a view in horizontal longitudinal section. Figs. 3 and 4: are views in vertical transverse section on the lines y y and z z of Fig. 1, and Fig. 5 is a perspective view with the outer casing removed.

1 represents the outer shell or casing of my improvements, which is preferably of metal cast into the shape shown, as will be more fully hereinafter described. The open inlet end of the shell is at an incline and closed by a plate 3, secured in place by studs 2 or other connecting devices located at the four corners of the plate. The shell is of a general square or rectangular shape from its inlet end, its sides gradually contracting to its discharge end and its top dips at a, while the bottom inclines upward at Z) to the nozzle and then extending in approximately parallel lines, forming the elongated nozzle 4:, the upper and lower walls of which are. dished or curved downward to center the flame according to the center of gravity of the locomotive or other engine on or made integral with plate 3, and a washer 7 is interposed between plate 3 and the end of shell 1 to make the joint tight.

The inner shell 6 is divided longitudinally by horizontal partitions 8 and 9, respectively, into an upper oil-passage 10, an intermediate air-passage 11, and a steam-passage 12 at the bottom, and the air-passage 11 is provided with large air-inlets 13 in the end plate 3. Asteaminlet 1 1 is provided in end plate 3 below and preferably in a line betweentheair-inlets 13, and an oil-inlet 15 is provided in an enlargement on top of the shell 1, all of said inlets being at an angle (not a right angle) to reduce to a minimum friction of the incoming gases.

. At the outlet end of air-passages 11 and extending across the same are a series of stepped dished platforms or tables 17 five being shown, although a greater or less number may be employed, if desired. These tables or platforms incline slightly, so that oil dropped onto the upper one from oil-passage 10 will fall to the next lower, and so on to the bottom, across the air-passage and be thoroughly vaporized and mixed with the air, forming a gas to be burned at the nozzle. -By so constructing the apparatus the thorough vaporizing of the oil and admixture with the air is insured as the oil passes in a thin sheet across the air current and thoroughly impregnates the same.

The steam is only used to start the burner-- that is, to serve as a suction-creating agent to start the flow o'f airand, as clearly shown in Fig. 1, this steam-passage contracts at its outlet end, owing to the curvature of the bottom of the shells, so that the steam is ejected through the nozzle in a thin layer under great pressure, most effectually drawing in the air and oil and starting their mixture. As soon as the air is flowing freely and the apparatus is working properly steam is shut ofi and is not again turned on unless for lack of draft or some other reason the proper supply of air is lacking, when it may be again utilized to bring the supply of air up to what is required for perfect mixing and combustion.

When in use o n a locomotive-boiler, the force-draft of the engine in motion is all sufficient to secure the most intense combustion, and the steam is only employed in the roundhouse to start the burners. When the locomotive is atastandstill, the draft is not so great and the combustion is not so intense; but when the locomotive starts to move the draft increases and the combustion is more intense, thus making the burner automatic in one sensethat is, generate the greatest heat when most needed and save fuel when the heat is not needed.

To prevent noise, I preferably construct the pipes connected with the several inlets of lead or other non-resonant material, and for convenience in utilizing the burner to the best advantage I preferably leave the side walls at the outlet end of the nozzle thicker than necessary to permit them to be narrowed or shaped to best suit the conditions under which my improvements are employed.

A great many changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence I do not confine myself to the precise construction set forth, but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a mixer and burner, the combination with a shell having a nozzle at one end, of partitions dividing said shell and forming an airpassage and an oil passage communicating with the nozzle, and a series of short-stepped platforms projecting beyond the outlet end of the oil-passage.

2. In a mixer and burner, the combination with a shell having a nozzle at one end, of a partition in the shell and cooperating with the nozzle and shell to form a steam-passage and a contracted outlet therefor, another partition spaced from the first and cooperating therewith to form an air-passage and cooperating with the shell to form an oil-passage, and a series of platforms in the air-passage and pro jecting beyond the end of the oil-passage.

3. In a mixer and burner, the combination with a shell tapering to a nozzle, of partitions in said shell, the lower partition projecting farther than the upper, and the shell made with. an oil-inlet to the space above the upper partition, an air inlet to the intermediate space, and a steam-inlet tothe space below the lower partition.

4. In a mixer and burner, the combination with a shell tapering to a nozzle, of partitions dividing the nozzle into an upper oil-passage, a lower steam-passage, and an air-passage between them, and a series of platforms or tables across the air-passage over which the oil must fall.

5. In a mixer and burner, the combination with a shell tapering to a fiat wide nozzle, of a partition dividing the shell into an oil-passage and an air-passage below the same, a series of platforms in the outlet end of the airpassage over which the oil falls and between which the air passes to mix therewith before entering the nozzle, said platforms projecting beyond the outlet end of the oil-passage.

6. In a mixer and burner, the combination with an outer shell, an inner shell therein divided into oil, air, and steam passages, aseries of stepped oil-platforms in the air-passage and projecting beyond the outlet end of the oilpassage and inclined ports or inlets into all of said passages.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM S. KEN GLA.

Witnesses:

GEORGE H. DAILY, WILLIAM H. BARNES. 

